**Core Concept**
Satellite nodules are a characteristic radiological feature seen in certain types of skin lesions. They are small, additional lesions that are clustered around a primary nodule, often giving a characteristic appearance on imaging. In dermatology, satellite nodules are a key feature in the diagnosis of certain skin conditions.

**Why the Correct Answer is Right**
Satellite nodules are typically seen in basal cell carcinoma, a type of skin cancer. These nodules arise from the peripheral extensions of the primary tumor, which invades the surrounding skin. The satellite nodules are often smaller than the primary tumor and can be seen on imaging studies such as CT or MRI scans. The presence of satellite nodules is an important diagnostic feature that helps differentiate basal cell carcinoma from other types of skin lesions.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because satellite nodules are not typically seen in melanoma, a different type of skin cancer. While melanoma can spread to other areas of the skin, it does not typically present with satellite nodules.
**Option B:** This option is incorrect because satellite nodules are not a characteristic feature of benign skin lesions such as seborrheic keratoses. These lesions are typically solitary and do not have peripheral extensions.
**Option C:** This option is incorrect because satellite nodules are not seen in actinic keratosis, a type of precancerous skin lesion. Actinic keratosis is typically solitary and does not have peripheral extensions.

**Clinical Pearl / High-Yield Fact**
When evaluating a skin lesion, it is essential to look for satellite nodules, which can be a key feature in the diagnosis of basal cell carcinoma. The presence of satellite nodules can also help differentiate basal cell carcinoma from other types of skin lesions.

**Correct Answer:** C.